Portable Oxygen Generator J15 — 33%, 3 L/min
In stock — processed in 1–2 business days
A compact generator for travel, home and outdoor use. One switch to start, and it stands 9.3 inches tall — small enough for a shelf or a car footwell.
About the concentration
This unit delivers 33% ±3% oxygen at every flow level. Ordinary room air is about 21%, so this is a light-enrichment device for general wellness use — not a high-concentration machine. If you need higher output, look at our 93% models instead.
Specifications
- Concentration: 33%
- Flow: 3 L/min
- Operating noise: ≤52 dB
- Size: 9.3(H) × 6(L) × 9(W) in
- Model: NT-5
In the box
- Oxygen generator
- Full accessory set
Intended for general wellness and everyday breathing comfort. Not intended to diagnose, treat, cure, prevent, or relieve any disease or symptom. Talk to your doctor before use if you have a medical condition.
If you're deciding between two
The whole range, side by side.
Add column names and spec rows to this section to build the table.
Three promises
Each one costs us money. That's the point.
The complaint that follows every budget concentrator is "nobody answers the phone." We built the company around making that impossible.
30 days
Thirty days to change your mind
Unopened, within 30 days, no restocking fee. Opened items carry a 15% restocking fee, and return shipping is the customer's. Wrong item or a defect is on us — we pay the return and send the right one. Full terms are in our refund policy.
One year
A one-year warranty that covers the machine
If it fails in normal use inside the first year, we repair or replace it. Call us and we'll sort out which, and walk you through what happens next.
8am-8pm ET
A phone number with a person on it
Monday through Friday, a person picks up. Not a chatbot, not a WhatsApp thread, not a ticket answered tomorrow. Phone support stays free for as long as you own the machine.
About this machine
Questions we get every week.
Do I need a prescription to order?
No. It's sold as a general wellness device for everyday breathing comfort, so you can order directly. If you're managing a health condition, talk with your doctor first — they can tell you whether supplemental oxygen suits you and at what setting.
What does "pulse" mean, and is it right for me?
Pulse delivery releases a measured burst of oxygen each time you start to inhale, rather than flowing constantly. It's why the machine can be this small and this quiet. If you've been advised you need continuous flow, look at the Home series instead — or call us and we'll talk it through.
How long does the battery really last?
About 3 hours at setting 2, which is where most owners sit. Higher settings and faster breathing draw more, so setting 5 runs closer to 1 hour 40. A spare swaps in about ten seconds and doubles your day.
How loud is it, honestly?
Quieter than a household fridge, and about the level of a quiet library. You'll hear a soft puff on each breath. Owners regularly report leaving it running in a bedroom without waking a partner.
What maintenance does it need?
Rinse the intake sponge weekly and let it dry; replace the internal filter about every 6 months. Filters are $29 for three, and you can set them to arrive automatically so you don't have to remember.